DIY Audio Projects Forum
 NEW  Matt presents bias and operation data for the 6V6 tube in SE operation - 6V6 Single-Ended (SE) Ultra Linear (UL) Bias Optimization.

DIY Audio Projects Forum

Welcome to the DIY Audio Projects Message Forum. Use these forums to discuss Hi-Fi audio and to share your DIY Audio Projects. Registration is free and required to post messages and view the file attachments. Registration will only take a minute and registered users do not see any advertisements. After you have completed the online registration process, check your email (including spam/junk folder) for the verification email to activate your account. New members are under moderation - so your posts will not be visible until approved by a moderator. See the Read Me 1st, Forum RULES and Forum FAQ to get started on the forum.

It is currently 06 Dec 2019, 07:38

All times are UTC - 6 hours [ DST ]




Post new topic Reply to topic  [ 20 posts ]  Go to page Previous  1, 2
Author Message
PostPosted: 17 Jan 2012, 02:13 
Offline
User avatar

Joined: 27 Dec 2011, 00:41
Posts: 10
I have tried several as I used Circad for years but no tubes or even layouts in the libraries. I ended up using Eagle as I have used Linux for about 5 years now. It works with windoze, Mac and Linux but still no libraries with it for tubes. I just do them old school with pads and traces with either software.

I made some PCB's the other day with just household stuff but you do need a laser printer.

Can't seem to find the website but what it boiled down to was printing (with a laser printer) on cheap magazine paper preferably with print only on the page but it also has to have a shine to the paper. Iron the image on the PC board, let cool and put in water. once the paper starts breaking down carefully clean off the pulp. I just rolled it off with bare fingers and you should have a cool looking board with the artwork on it. If you mess up just clean off the toner with laquer thinner or elbow grease and try again till you get a perfect looking board.

Now comes the best part.

The echant is made with 1 part white vinegar, 1 part hydrogen peroxide (like in you medicine cabinet) and a dash of salt to speed up the process. Even though it took a few hours to etch the board the smell wasn't to bad and you didn't get stained like with the ferric chloride. Also no rubber gloves were need but I still handled it with care and did it outside as I am no chemist and no telling what that mixture actually is but it sure works. Don't think I want to try the battery acid approach as I have seen on the net as well.

That was on a Sunday morning as there was nowhere to get supplies but it was still faster than gathering all the goodies (transfer paper. Etchant ETC) and had them done before noon.

If I find the website I will post here.

I will keep using this method from now on.
EC


Top
 Profile  
 
PostPosted: 17 Jan 2012, 18:31 
Offline
User avatar

Joined: 27 Dec 2011, 00:41
Posts: 10
Here are the sites

http://www.riccibitti.com/pcb/pcb.htm



I have had great success with these methods.
EC


Top
 Profile  
 
PostPosted: 26 Mar 2012, 23:39 
Offline

Joined: 22 Jun 2010, 13:30
Posts: 66
i use paint for most of my scematics


Top
 Profile  
 
PostPosted: 23 Feb 2015, 14:39 
Offline
User avatar

Joined: 20 Feb 2015, 21:22
Posts: 21
Location: Central Scotland, UK
I've used paint and also TinyCAD: http://sourceforge.net/projects/tinycad/ Best thing is it's FREE :thumbsup:


Top
 Profile  
 
PostPosted: 23 Feb 2015, 15:36 
Offline
User avatar

Joined: 08 Aug 2009, 03:11
Posts: 2229
Location: Chilliwack, BC
I forgot to update this since I took down the CMS on my site. The direct link for the circuit symbols is:
http://geek.scorpiorising.ca/files/Circuit_Symbols.zip

_________________
-= Gregg =-
* Ratings are for transistors - tubes have guidelines*
Home: GeeK ZonE
Work: Classic Valve Design


Top
 Profile  
 
PostPosted: 28 Feb 2015, 09:24 
Offline
Editor
User avatar

Joined: 28 May 2008, 21:53
Posts: 4580
Location: Winnipeg, CANADA
Thanks, I updated the previous links in the thread with the new link.

Cheers

_________________
[ DIY Mains AC Power Cable Cord ] - [ Gobo LM1875 Amp Kit ] - [ Tang Band D4-1 Horn Speaker Kit ] - [ Monoblock Push-Pull KT88 Tube Amp Kit ]


Top
 Profile  
 
PostPosted: 03 Mar 2015, 21:59 
Offline
User avatar

Joined: 05 Nov 2010, 21:07
Posts: 702
Location: South East US - Tennessee
'Nother expressPCB/expressSCH user here. I use the SCH heavily and have used the PCB to create my own printed boards. Good programs. Just understand that SCH is just a diagramming software and not a sim. BUT, the nice thing is that if it doesn't have a symbol you want, you can easily build one of those, too. Love it!


:beerchug:

_________________
The key to a successful build is to keep the smoke IN the circuit.
-Les

We cannot solve our problems with the same thinking we used when we created them. - Albert Einstien
_________________________________
LM380 Bridged Guitar Amp, Oatley K301 Phono Pre-amp, Oatley K272 Headphone Amp, Tube proto-board


Top
 Profile  
 
PostPosted: 07 Mar 2015, 01:24 
Offline
User avatar

Joined: 24 Sep 2014, 08:22
Posts: 72
Location: Bangalore, India
And I use Microsoft Excel!

Regards,

Nandu.

_________________
http://nandustips.blogspot.com


Top
 Profile  
 
PostPosted: 15 Jan 2017, 11:16 
Offline

Joined: 07 Sep 2011, 00:34
Posts: 4
Has anyone found anything to create with for mac?


Top
 Profile  
 
PostPosted: 15 Jan 2017, 16:14 
Offline
User avatar

Joined: 08 Aug 2009, 03:11
Posts: 2229
Location: Chilliwack, BC
Drawberry is a very lightweight alternative to GIMP for Mac.

_________________
-= Gregg =-
* Ratings are for transistors - tubes have guidelines*
Home: GeeK ZonE
Work: Classic Valve Design


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 20 posts ]  Go to page Previous  1, 2

All times are UTC - 6 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 5 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
DIY Tube Projects :: DIY Tube Amp Kits :: DIY Speaker Projects :: DIY Solid State Projects :: DIY IC / Op-amp Projects :: DIY Phono Projects :: DIY Cable Projects :: Hi-Fi Audio Schematics
© diyAudioProjects.com - Terms of Service - Privacy Policy